Snap packaging for device-grove

[anonymouse64]

Similar to device-mqtt and device-modbus, we should create a snap package for this repo, probably named edgex-device-grove. This would need the project to register the snap name and create a track for the edinburgh release.

I produced a snap package for similar device service that uses the C SDK for @mhall119 at https://github.com/mhall119/edgex-device-rpi/ so that snapcraft.yaml could probably be easily adapted for this repo. Unfortunately I would need help testing it as I don't have access to any of the grove sensors or devices.

In addition to this, we would additionally want an edinburgh track for the snap that the LF folks would need to request.

To do this, we should do the following things in order:

1. Open a PR here with the snapcraft.yaml added to the repo (but don't merge)
2. Deploy jenkins snap verify job for this repo to the jenkins sandbox
3. Open PR to ci-management with the snap verify and stage jobs, referencing the sandbox jobs for testing, etc.
4. Merge the ci-management PR
5. Close the original PR from 1, and re-open to trigger the new verify jobs
6. Merge the PR here
7. Should probably also update the README here to mention the snap

This issue can be assigned to me